Welcome! My Site features step by step intructions on how to build from Scratch and/or Kit models of Science fiction and other projects. Be the first to see the latest updates by becoming a member of my site. Join NOW! It's Free~!
I'm using a 1mm drill bit for all of these holes. The copper tubing is not too hard to drill into. I had to cut the drill bit length to 3/4 inch to make the bit a little more rigid so it wouldn't drift when starting the holes.